Material Drying
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ASA humidity seasonal adjustment
Problembeschreibung
[Problem phenomenon] ASA defect rate rises in rainy season, the same process performs differently in summer and winter
Ursachenanalyse
Seasonal changes in environmental humidity affect pellet moisture absorption rate and drying endpoint; shortened open-bag exposure time and extended drying time in rainy season are necessary adjustments; during on-site investigation, verify item by item according to this mechanism, avoid blindly adjusting the machine based on experience alone
Lösung
Rainy season drying extended 1-2h with densified moisture content sampling; hopper heat preservation executed year-round; workshop dehumidification auxiliary; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Wichtigste Erkenntnis
ASA process adjusted with seasons, rainy season drying and sampling doubly strengthened; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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